| 摘要 |
<p>Drive device (1) characterized in that it comprises at least one wheel (2) of which the central shaft (5) is mounted on bearings (7, 9) integral with a rigid frame, said wheel being subdivided into a plurality of compartments (13, 15) which are essentially shaped as sectors, at least one compartment out of two (13) communicating with a central cylinder (17) of which at least half of it is filled with a liquid and forming a variable volume chamber by means of a movable wall (13') hinged to the central cylinder (17) and lockable in a closed position. The drive device is also characterized in that it comprises a calibrated stop member (27) for closing the compartments (13) and an unlocking member (25) which releases the movable wall (13'), the calibrated stop member (27) being arranged at the periphery of said wheel (1) at the vicinity of the lower point and the unlocking member being actuated at the upper periphery of said wheel so that any compartment (13) in the lower right quadrant of the wheel (1) is open and any compartment (13) in the lower left quadrant of the wheel is closed, in the case where the wheel rotates clockwise and vice versa in the case where the wheel rotates counter-clockwise.</p> |
